mysqli_stmt::$error
mysqli_stmt::$error
mysqli_stmt_error
(PHP 5, PHP 7)
mysqli_stmt :: $ error - mysqli_stmt_error - 返回最后语句错误的字符串描述
描述
面向对象的风格
string $mysqli_stmt->error;
程序风格
string mysqli_stmt_error ( mysqli_stmt $stmt )
返回一个字符串，其中包含可以成功或失败的最近调用的语句函数的错误消息。
参数
`stmt`
仅过程风格：由mysqli_stmt_init（）返回的语句标识符。
返回值
描述错误的字符串。如果没有发生错误，则为空字符串。
例子
Example #1 Object oriented style
<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world"
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error()
exit(
}
$mysqli->query("CREATE TABLE myCountry LIKE Country"
$mysqli->query("INSERT INTO myCountry SELECT * FROM Country"
$query = "SELECT Name, Code FROM myCountry ORDER BY Name";
if ($stmt = $mysqli->prepare($query)) {
/* drop table */
$mysqli->query("DROP TABLE myCountry"
/* execute query */
$stmt->execute(
printf("Error: %s.\n", $stmt->error
/* close statement */
$stmt->close(
}
/* close connection */
$mysqli->close(
?>
Example #2 Procedural style
<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world"
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error()
exit(
}
mysqli_query($link, "CREATE TABLE myCountry LIKE Country"
mysqli_query($link, "INSERT INTO myCountry SELECT * FROM Country"
$query = "SELECT Name, Code FROM myCountry ORDER BY Name";
if ($stmt = mysqli_prepare($link, $query)) {
/* drop table */
mysqli_query($link, "DROP TABLE myCountry"
/* execute query */
mysqli_stmt_execute($stmt
printf("Error: %s.\n", mysqli_stmt_error($stmt)
/* close statement */
mysqli_stmt_close($stmt
}
/* close connection */
mysqli_close($link
?>
上面的例子会输出：
Error: Table 'world.myCountry' doesn't exist.
